參數(shù)資料
型號: IDTCV110NPVG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 12/16頁
文件大小: 0K
描述: IC FLEXPC CLK PROGR P4 56-SSOP
產(chǎn)品變化通告: Product Discontinuation 19/Jul/2010
標(biāo)準(zhǔn)包裝: 1,000
系列: FlexPC™
類型: 時(shí)鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU,SATA CPU
輸入: 晶體
輸出: 時(shí)鐘
電路數(shù): 1
比率 - 輸入:輸出: 1:20
差分 - 輸入:輸出: 無/是
頻率 - 最大: 400MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 56-BSSOP(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 56-SSOP
包裝: 帶卷 (TR)
其它名稱: CV110NPVG8
COMMERCIALTEMPERATURERANGE
IDTCV110N
PROGRAMMABLEFLEXPCCLOCKFORP4PROCESSOR
5
CONTROLREGISTERS
N PROGRAMMING PROCEDURE
Use Index byte write.
For N programming, the user only needs to access Byte17, Byte 25, and Byte8.
1.
Write Byte17 for CPU PLL N, CPU f = N* Resolution, see resolution table below Byte17.
2.
Write Byte25 for SRC PLL N, SRC f = N*0.666667, PCI = SRC f /3.
3.
Enable N Programming bit, Byte8 bit1. Once this bit is enabled, any N value will be changed on the fly.
Center spread only works when the N Programming bit is enabled. Down spread is OK even N Programming bit is disabled
It is OK to change N value to any value on the bench test board. In the system, IDT recommends the stepping change. It is unknown how much
the system can sustain for each stepping change; the estimate is about 5. If the N changes too much in one step, the system will likely hang.
Note that SATA is with SRC PLL. This SATA Hard Drive might not operate during SRC N programming.
Most of the Bytes, from Byte8-Byte31, are used to adjust output waveforms and SSC modulation profiles. The power on setting will be changed according
to each power on frequency selection. To avoid mistakes, don’t write on those byte (be careful about Block Write). It is suggested to use the Index Byte
write to access bytes.
SSC MAGNITUDE CONTROL, SMC
SMC[2:0]
000
-0.25
001
-0.5
010
-0.75
011
-1
100
±0.125
101
±0.25
110
±0.375
111
±0.5
FS_C, B, A
CPU
101
100
001
133
011
166
010
200
000
266
100
333
110
400
111
RESERVE
FREQUENCY SELECTION TABLE
RESOLUTION
CPU (MHz)
Resolution
N =
100
0.666667
150
133
0.666667
200
166
1.333333
125
200
1.333333
150
266
1.333333
200
333
2.666667
125
400
2.666667
150
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